And even if they don't work out of the box, it's often just a matter of the controller configuration that hasn't been done yet, which doesn't take a long time to make either.
Not sure what you're getting at. Even if we go with your number, for many people, the 10 games they'll play will be different, which is where the wide selection comes in.
Huh? I have basically only used my steam deck while traveling, and I don't travel that often, and I've played easily 30+ games on there. There are thousands of games that are excellent on the hardware, I have no idea what you're talking about.
Most Switch owners won't play more than a handful of games, because every Nintendo game is priced at $60 in perpetuity.
That's fair. I've checked out some games, but I haven't actually got started on any yet. I've had a switch in the past, I maybe played 7-8 games on it.
I don't think anyone really cares though. People buy Nintendo consoles for Nintendo games.
I own both. I prefer the switch to play games with my daughter. I'm also getting rid of the Steam Deck because I tend to only play casual games on it. I've now bought a gaming laptop (mainly for editing photos and recording music) which is a way better form factor for me. The Steam Deck is amazing though and I see how it is the perfect machine for many people.